Ed Sheeran, Cody Simpson and Charli XCX all appear in a new video to mark the International Day of Happiness tomorrow (20.03.15).

Ed Sheeran

Ed Sheeran

The pop trio feature alongside the likes of Nelson Mandela - the former President of South Africa - and UN Secretary- General Ban Ki-moon.

Indeed, the United Nations has joined forces with MixRadio to create a video that forms part of the week-long celebrations for the International Day of Happiness.

The video sees artists from around the world create a lip synced version of Charli XCX's popular track 'Boom Clap'.

The playlist has been created by MixRadio. To watch the video and listen to the playlist visit www.happysoundslike.com.